<template>
  <div class="login-wrap">
    <div class="ms-login">
      <div class="ms-title">登录</div>
      <el-form :model="param" :rules="rules" ref="login" label-width="0px" class="ms-content">
        <el-form-item prop="username">
          <el-input v-model="param.username" placeholder="请输入账号">
            <template #prepend>
              <el-button icon="el-icon-user"></el-button>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            type="password"
            placeholder="请输入密码"
            v-model="param.password"
            @keyup.enter="submitForm()"
          >
            <template #prepend>
              <el-button icon="el-icon-lock"></el-button>
            </template>
          </el-input>
        </el-form-item>
        <div style="margin-bottom: 15px;display: flex;justify-content: space-between;align-items: center">
          <el-checkbox v-model="checkShow" size="medium">记住密码</el-checkbox>
          <el-button type="text" style="color: #FFFFFF" @click="registerClick">注册</el-button>
        </div>
        <div class="login-btn">
          <el-button type="primary" @click="submitForm()">登录</el-button>
          <el-button type="info" @click="resetLogin()">重置</el-button>
        </div>
<!--        <p class="login-tips">Tips : 用户名和密码随便填。</p>-->
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      param: {
        username: 'admin',
        password: '123456',
      },
      checkShow: false,
      // 验证对象
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' }, // 必填
          {
            min: 3, max: 12, message: '长度在 3 到 12 个字符', trigger: 'blur',
          }, // 长度验证
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6, max: 10, message: '长度在 6 到 10 个字符', trigger: 'blur',
          }, // 长度验证
        ],
      },
    };
  },
  created() {
    this.getUser()
  },
  methods: {
    getUser(){
      let userName = JSON.parse(window.sessionStorage.getItem('userName') || null)
      if (userName && userName.checkShow == true){
        this.param.username = userName.username
        this.param.password = userName.password
        this.checkShow = userName.checkShow
      }
    },
    submitForm() {
      //1.验证属性
      this.$refs.login.validate(async (valid) => { // 返回true 和 false
        if (valid) {
          // localStorage.setItem("ms_username", this.param.username);
          const { data: res } = await this.$http.post('login', this.param); // 访问后台
          if (res.flag == "200") {
            window.sessionStorage.setItem('user', JSON.stringify(res.user)); // 存储user对象
            this.$message.success('登录成功');// 信息提示
            if (this.checkShow == true){
              let data = {
                username: this.param.username,
                password: this.param.password,
                checkShow: this.checkShow
              }
              window.sessionStorage.setItem('userName', JSON.stringify(data));
            }
            this.$router.push({ path: '/front/Home' }); // 页面路由跳转
          } else {
            this.$message.error('登录失败');
          }
        } else { // 验证失败
          this.$message.error('请输入账号和密码');
          return false;
        }
      });
    },
    // 重置
    resetLogin() {
      // this.$refs.login.resetFields();
      this.param.username = ''
      this.param.password = ''
    },
    registerClick(){
      this.$router.push('../register');
    }
  },
};
</script>

<style scoped>
.login-wrap {
  /*position: relative;*/
  /*width: 100%;*/
  /*height: 100%;*/
  /*background-image: url(../assets/img/login-bg.jpg);*/
  /*background-size: 100%;*/
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url(../assets/img/login-bg.jpg);
  background-size: 100% 100%;
  background-repeat: no-repeat;

}
.ms-title {
  width: 100%;
  line-height: 50px;
  text-align: center;
  font-size: 20px;
  color: #fff;
  border-bottom: 1px solid #ddd;
}
.ms-login {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 350px;
  margin: -190px 0 0 -175px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.3);
  overflow: hidden;
}
.ms-content {
  padding: 30px 30px;
}
.login-btn {
  text-align: center;
}
.login-btn button {
  width: 48%;
  height: 36px;
  margin-bottom: 10px;
}
.login-tips {
  font-size: 12px;
  line-height: 30px;
  color: #fff;
}
</style>
